Their last name is Wright.
Orville and Wilbur Wright are often referred to simply as the Wright Brothers.
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Orville and Wibur were the Wright brothers.
120 feet in 12 seconds.
It lasted only a few minutes.
aproximetly 5 to 7 billion years
Erm... since you categorized it into THE WRIGHT BROTHERS we can only assume that you are well aware of their last name...
WRIGHT
Ralph Waldo Emerson is a famous figure in social studies known for his essays on self-reliance and individualism.
3 years
Second Flight: Wilbur, 175 feet (53 m)
he was 24 when he flew the first airplane with Wilbur his brother